baber/WOPTO huggingface dataset:
Patent GB-301999-A (GB)
Title: Improvements in or relating to containers such as bottles, jars or the like and in closures therefor
IPC: B65D41/04
Filed: 1927-10-07
Abstract: 301,999. British Sure Seal Co., Ltd., and Huxley, J. H. Oct. 7, 1927. Cap stoppers, bayonet-joint; sealing-devices for closures.-A bottle, jar, &c. formed with entry to interrupted threads &c. at its actual mouth is closed by a re-seal cap 1 adapted to be drawn down on to the mouth by relative rotation, the cap being formed with an inextensible upper part and a flange 2 of minimum depth provided with nibs, ribs, &c. 4 which engage the threads. The maximum depth of the flange is one twelfth of the diameter of the cap. As described in Specification 289,136, the lower edge of the flange is curled and indented as at 4, Fig. 5, and the cap may be locked in position by a locking ring formed as described in Specification 10419/14, 142,384, 159,684, 169,337, or 205,691. The container is formed with a projecting ridge 10 to ensure a tight closure, and the flange of the cap is milled to facilitate its removal. A skeleton ring may replace the cap and a tear-off cap the locking ring.
Patent GB-463116-A (GB)
Title: Improvements in the manufacture and production of metal carbonyls practically free from sulphur
IPC: C01G1/04
Filed: 1935-09-26
Abstract: In obtaining metal carbonyls by the action of carbon monoxide on raw materials containing carbonyl-forming metals and sulphur, the resulting metal carbonyls are freed from sulphur by treating them after their preparation with materials capable of absorbing sulphur. Suitable sulphur-absorbing materials include sulphur-binding metals such as nickel, iron, copper, silver, cobalt or molybdenum and/or substances having an absorptive action such as active carbon, silica, preselguhr, or coke.  A sulphur binding-metal precipitated on a substance having an absorptive action may be used.  Preferably, the metal carbonyls are treated directly after their preparation and at elevated temperature. According to examples (1) nickel carbonyl vapour is led at a pressure of 200 atmospheres and at 200 DEG  C. over copper sponge; (2) nickel carbonyl is distilled, the column being filled with shaped pieces of pressed nickel powder.
Patent GB-1351299-A (GB)
Title: Process for the manufacture of silver catalysts for use in the manufacture of ethylene oxide
IPC: C07D301/10
Filed: 1971-04-19
Abstract: 1351299 Preparation of ethylene oxide CHEMISCHE WERKE HULS AG 19 April 1971 [14 April 1970] 26738/71 Heading C2C [Also in Division B1] Ethylene oxide is prepared by contacting ethylene with molecular oxygen in the presence of silver-containing catalyst which has been pre. pared by a process which comprises (i) treating porous support material having a porosity of above 50% and a pore diameter preferably of from 50 to 2000 microns with a suspension of silver oxide in an aqueous solution of a watersoluble silver salt of an organic acid, which silver salt is capable of reducing silver oxide to elemental silver at a temperature of from 160 to 230 C., and (ii) heating the treated support material at a temperature of from 160 to 230 C. to convert the silver oxide to elemental silver. The suspension, from 35 to 65 atom per cent of the silver content of which is in the form of silver oxide, may have been prepared by treating silver oxide with a 40 to 80 weight per cent aqueous solution of the organic acid, optionally followed by addition of further silver oxide. The steps (i) and (ii) may be repeated at least once; is steps (i) and (ii) are repeated at least twice, the suspension may contain silver oxide alone (i.e. no silver salt of an organic acid) from the third cycle onwards. As exemplified, ethylene oxide is prepared by contacting a gas mixture containing ethylene, oxygen, nitrogen and carbondioxide with catalyst which contains, as support material, silica/alpha-alumina and in the preparation of which lactic acid has been used as the organic acid.
Patent GB-1158164-A (GB)
Title: Improvements in or relating to Insulated Lead Through Terminals
IPC: H01B17/30
Filed: 1966-06-15
Abstract: 1,158,164. Grommets. HENRY THOMAS Ltd., and J. H. TINKER. 14 June, 1967 [15 June, 1966], No. 26747/66. Heading F2H. [Also in Division H2] An insulated lead-through terminal comprises two insulating tubular members 10 and 15, the one 15 being slidable over the outer surface of one end of the other 10 to grip a supporting member 8 between itself and abutment 11 on the other, the inside surfaces of the two members being cylindrical and bounded at ends 13 and 16 by walls perpendicular to their axes. These end walls have slits 14 and 17 to allow a conducting member 18, having a stop shoulder 19 near one end, to pass through both tubular members. Deformation at the other end of the conducting member when it is in position in the tubular members serves to lock them together. The conducting member is of strip form and has a raised pip on its surface to form a detent to retain it within member 10. The tubular members are made of nylon.
Patent GB-1169683-A (GB)
Title: Current Transductor
IPC: G01R19/20
Filed: 1968-06-05
Abstract: 1,169,683. Controlled non- linear inductors. WESTING- HOUSE ELECTRIC CORP. 5 June, 1968 [20 June, 1967], No. 26765/68. Heading H3B. [Also in Division G1] In a saturable transformer arrangement used for measuring the magnitude of direct current, the secondary windings 38, 44, Fig. 1, of two saturable transformers 12, 14 are fed through respective series impedances 16, 18 with opposing A.C. voltages from an excitation transformer 26, and both impedances are connected in parallel through respective rectifiers 22, 24 with a common load impedance 20, the common load impedance combining the opposed voltages developed across the series impedances 16, 18 and providing an output proportional to the D.C. current in the primary windings 36, 42 of the saturable transformers. The arrangement is operative only for the direction 50 of D.C. current shown, and for measurement of current in the reverse direction the direction of both rectifiers 22 and 24 must be changed. This changeover of rectifier connections is effected automatically in Fig. 3 in response to a reversal of direction of the D.C. current. The circuit is the same as that shown in Fig. 1 except that a relay 10 reverses the directions of rectifiers 22, 24 when operated, and energization of the relay coil 122 is controlled by NPN transistors 100, 102 respectively controlled by the voltage across secondary winding 44 and the voltage across resistor 18. When the D.C. current to be measured is in the correct direction 140, both transistors 100, 102 will be non-conducting during the periods when the transformer 14 is unsaturated, and transistor 102 will be non-conducting and transistor 100 conducting when the transformer saturates. In either case the relay coil 122 will be unexcited. With the D.C. current reversed there will be no change in the unsaturated operational state, but when the transformer 14 saturates then transistor 102 only will become conductive. An operating circuit is therefore completed for the relay coil from a D.C. source 122 through a rectifier 120 and the direction of the rectifiers 22, 24 is reversed. Reference has been directed by the Comptroller to Specification 923,362.
Patent GB-616483-A (GB)
Title: Hand drying apparatus
IPC: A47K10/00
Filed: 1946-11-06
Abstract: 616,483. Hand-drying appliances. BARNES, H. Nov. 6, 1946. No. 26775. [Class 81 (ii)] A hand-drying appliance comprises members having a covering of absorbent cellular material between which the hands are passed. On each of two spindles 1 and 2 are mounted sleeves 3 of sponge rubber having notched annular projections 4. The spindles are rotatably mounted in a frame 9, a pressure plate 7 being slidably mounted on the spindles to squeeze out moisture from the sleeves. A hot water tank 10 keeps the rollers dry. In a modification, corrugated rollers are used. The Provisional Specification describes one or a pair of endless bands on which pieces of absorbent material are mounted and also a pair of rollers which are automatically rotated in one direction and which are dried by passing a high frequency electric discharge therethrough.
Patent GB-730800-A (GB)
Title: Strip feeding and severing apparatus
IPC: B26D1/24
Filed: 1952-10-24
Abstract: 730,800. Strip feeding and severing apparatus. STANDARD REGISTER CO. Oct. 24, 1952, No. 26810/52. Class 31 (1). A strip feeding and severing apparatus for transversely dividing an assembly of superposed continuous strips into a succession of individual sheets comprises intermittently operating means for pretensioning the assembly in a localized area and an intermittently operating movable device for severing the assembly across its pretensioned area. The superposed strips, which are provided with longitudinally - spaced transverse weakened lines, are pre-tensioned between a pair of feed rollers 7, 8, Fig. 5, and a pair of tensioning rollers 9, 10 which are driven at greater peripheral speed than the feed rollers. The shafts 13, 14 of the rollers 8, 10 are mounted in a pair of arms 17 rockable about a shaft 16 to and from engagement with the rollers 7, 9 by means of cams 18 co-operating with rollers 20 mounted upon the arms 17. The rollers 7, 9. 10 are preferably provided with axially-adjustable rubber collars. The superposed strips are fed continuously by means of pin wheels 15 mounted on the shaft 13 of the roller 8. The shaft 12 of the roller 9 is driven from an electric motor 6 and drives the shafts 11, 13 of the roller 7 and pin wheels 15 through reduction gearing. The marginal portions of the strips are severed across the pre-tensioned area by means of blades 42 adjustably mounted on a bar 41 connecting the free ends of a pair of arms 40 pivoted about a shaft 37 journalled in the arms 17 and connected by means of tension springs 46 to a pair of arms 36 also pivoted about the shaft 37 and rocked by means of cams 38 co-operating with rollers 39 mounted on the free ends of the arms 36. The arms 36 are connected to extensions 45 of the arms 17 by means of tension springs 43. The shaft 11 of the roller 7 carries a pinion 27, Fig. 3, which meshes with an idler gear 29 mounted on an adjustable arm 30 pivoted about the shaft 11 and adjustable in a concentric arcuate slot 31 so that it can mesh with any one of a plurality of interchangeable gear pinions 33 of different size mounted on the cam-shaft 19 so that the latter shaft is driven at a different speed to enable sheets of different length to be severed. To enable opposing feed and tensioning rollers to be adjusted relatively to each other, the shaft 16 is mounted in eccentric sleeves 65, Fig. 3, which are adjustable by means of studs 66, and the rollers 20 are mounted on eccentric plates 67, Fig. 5, which are locked in adjusted position by means of screws 68. Marginal feed bands of the strips are cut off by means of a pair of cutter discs 55, Fig. 5, co-acting with the peripheries of the pin wheels 15 and carried by arms 56 pivoted about the shaft 16, the arms being raised, when it is desired to remove the discs 55, by means of an arm 62 provided with a spring-pressed locking plunger 63. The cutter discs 55 may be sharp to shear the strips or dull in which case they break the strips on longitudinal weakened lines. Specification 583,085 is referred to.
Patent GB-627310-A (GB)
Title: Improvements in or relating to searchights
IPC: F21V7/00
Filed: 1946-09-06
Abstract: 627,310. Searchlights. NAAMLOOZE VENNOOTSCHAP PHILIPS' GLOEILAMPENFABRIEKEN. Sept. 6, 1946, No. 26849. Convention date, March 13, 1943. [Class 75(ii)] [Also in Group XX] A searchlight comprises two parabolic cylindrical reflectors whose focal lengths are in the ratio of at least 5 : 1 and whose generators are orthogonal and a linear light source disposed along the focal line of the reflector having the smaller focal length. 'As shown, the source 3, which may be a mercury vapour discharge lamp, is disposed along the focal line of the reflector 1 of focal length f<SP>1</SP> from which light is reflected onto the reflector 2 having a focal length f 2  such that f 2 / f 1  is at least 5. This reflector is shielded from direct light from the source 3 by a screen 11. Between source 3 and reflector 1 is disposed a screen having the form of a truncated cone with its upper edge 6 lying in the plane passing through the focal line and apex generator of reflector 2. The upper edge 6 is of radius r and the reflectors are spaced apart a distance f 2  minus f 1  plus r.
Patent GB-948348-A (GB)
Title: Improvements in or relating to apparatus for manufacturing drainage pipes
IPC: B28B21/92
Filed: 1960-07-12
Abstract: 948,348. Moulding drainage pipes. G. SCOTT. July 10, 1961 [July 12, 1960], No. 26862/63. Divided out of 948,347. Drawings to Specification. Heading B5A. The subject matter is identical with that in Specification 948,347 but the claims relate to the apparatus.
Patent GB-1423497-A (GB)
Title: Pivoted well drilling mast and separate tower
IPC: E21B19/14
Filed: 1974-06-18
Abstract: 1423497 Boring earth etc LEE C MOORE CORP 18 June 1974 26907/74 Heading E1F Well drilling apparatus, particularly suitable for use on a floating vessel 2, includes an open fronted drilling mast 5 which is hinged to a substructure 1 for swinging movement between a prone position (shown in full line) and an upright position (shown dotted) and an open backed pipe racking tower 16 also hinged to the substructure for swinging movement between prone and upright positions. As described the substructure 1 is provided with a gin pole 3, drawworks 10 and shoes 4 in which the feet of the drilling mast 5 are pivoted. A wire line 8 extends from the draw-works 10 around a crown block 7 and a travelling block 9. When prone the mast 5 rests on a support 6. To raise the mast 5 a sling 12 is connected to a bracket 14 on the mast 5, is passed around sheaves 13 on the gin pole 3 and is fixed to the travelling block 9. Operation of the draw-works 10 thus raises the mast 5 which is then fixed to the gin pole 3. The pipe racking tower 16 is hinged to the substructure at 17 and when prone rests on a support 18. To raise the tower 16 a sling 20 is used which is fixed at one end to a bracket 23 on the tower 16, passes around sheaves 22, 21 and is fixed at its other end to the travelling block 9. When raised the tower 16 is connected to the mast 5. The tower 16 includes pipe racking platforms 25, 26 for receiving stands of pipe and carriages 27, 28, 29 which can move along transverse tracks 30. Each carriage is provided with an arm 31 which can grip the pipe and which can be moved longitudinally to move the pipe into and out of the mast 5.
Patent GB-404096-A (GB)
Title: Improvements in or relating to starting mechanism for motor-cycle engines
IPC: F02N3/04
Filed: 1932-09-28
Abstract: 404,096. Turning-gear. DOUGLAS MOTORS (1932), Ltd., and PULLIN, C. G., Kingswood, Bristol. Sept. 28, 1932, No. 26958. [Class 7 (v).] In a kick starter for motor-cycle engines, the pedal-actuated toothed segment 7 is axially fast and the driven pinion 6 moves axially, when rotated by the segment, along a screwthreaded sleeve 9 to establish a driving connection with the gear-box by shaft 4 through ratchet teeth 5, 3 or dogs or the like. As shown, the sleeve 9 is held by a spring 12 in contact with a shoulder 11 on the end of a fixed bearing sleeve 10 in which the end of the lay shaft 4 rotates.
Patent GB-821931-A (GB)
Title: Improvements in or relating to nuclear reactors
IPC: G21C7/16
Filed: 1947-10-07
Abstract: 821,931. Nuclear reactor control rods. UNITED KINGDOM ATOMIC ENERGY AUTHORITY. Oct. 7, 1947 [April 1, 1947], No. 26977/47. Drawings to Specification. Class 39(4). In a nuclear reactor, both the fuel and shut down rods are mounted in cylinders which are inserted into the moderator through channels in the shielding. Both sets of rods may be air cooled and each shut down rod is urged into the reactor along its cylinder by compressed air. The escape of radiation from the pile interior through the channels is prevented by the radially stepped form of the cylinders which act as plugs. Each shut-down rod is maintained at the outer end of its associated cylinder, away from the core, by a solenoid which, when de-energized permits the rod to be forced, by compressed air, to the opposite end of the cylinder, inside the core. The cooling air, which flows through the cylinder from the inner to the outer end may be used to return the shut-down rod to its outer position. Indicating switches are operated by the shutdown rods at the inner and outer positions and each rod consists of a steel tube filled with boron carbide powder and the outer cylinder is of aluminium.
Patent GB-604317-A (GB)
Title: Improvements in electric motor control systems for cranes, hoists and the like
IPC: H02P3/12
Filed: 1945-10-17
Abstract: 604,317. Control of motors. BARTON, T.W., FERRY, H., METROPOLITAN-VICKERS ELECTRICAL CO., Ltd., and WHITEHEAD IRON & STEEL CO., Ltd. Oct. 17, 1945, No. 27191. [Class 38 (iii)] In travelling cranes and hoists in which hoisting and travelling are effected by separate manually controlled motors over-wind or overtravel is prevented by a mechanically-operated limit switch which disconnects the motor from the supply and connects armature, field winding and a resistance in a dynamic braking circuit, such that the braking is proportional to the motor speed. The limit switch may be connected across the line in series with a contactor coil or coils or may be a main current series switch. In the Figure, the armature 6 for the travelling motor of a crane can be connected, with the series field 8, across the supply when coils 2 and 3 are energized to close contactor contacts 2<11> and 3<11>. The hand controller includes the contacts 11, whereby, with the controller moved to the right, opening of the limit switch 1 de-energizes contactor coils 2 and 3, thereby opening contacts 2<11> and 3<11> and closing contacts 2<1> and 3<1> to connect the armature 6 in a closed circuit with the resistance 7, with the field winding 8 included in the correct sense for electrically braking the motor. Movement of the controller to the left causes contacts 11 to short-circuit the limit switch 1 to allow the motor to be restarted in the opposite direction. Limit switches for both directions of travel may be used if desired. The circuits of the armature 15 and series field 16 of the hoisting motor are similarly controlled by the contactor contacts 13<1>-14<1> and 13<11>-14<11>; a limit switch 12 in the circuit of the contactor coils 13 and 14 prevents, overwinding during hoisting, but is short-circuited by contacts 18 during lowering. During braking, contacts 21 and 3<1> are held closed by coils 9 and 10 ; contacts 13<1> and 14<1> are similarly held closed by associated coils. Limit switches as described may be used in addition to limit switches of the prior art.
Patent GB-661362-A (GB)
Title: Improved process for the production of new vulcanisable and elastic thioplasts
IPC: C08L81/00
Filed: 1946-09-10
Abstract: In the production of thioplasts by the condensation of dichlorethyl acetal and an alkali polysulphide decomposition of the acetal during the condensation is prevented by adding to the acetal prior to or concurrently with the addition of the polysulphide, an antioxidant, i.e. hydroquinone, phenol, aniline, p-aminophenol or phenyl beta naphthylamine as specified in French Specification 898,612.  A solution of sodium polysulphide, NaOH, and MgCl2 in water is heated to boiling point whereupon dichloracetal prepared as in French Specification 898,612 and containing 0.5-1 per cent phenyl-beta-naphthylamine is added drop by drop.  The condensate is precipitated and after washing 100 parts are mixed with 25 parts active carbon, 5 parts rubber, 10 parts lead oxide, 1 part stearic acid, 1 part lead dithiocarbamate and 0.5 parts phenyl beta naphthylamine on differential rolls.  The mixture vulcanizes at 135-140 DEG  C. in ten minutes.  Specifications 422,826 and 450,210, [Group III], are referred to.
Patent GB-507237-A (GB)
Title: Improvements in automatic electric regulators for controlling the excitation of dynamo-electric machines
IPC: G05F1/00
Filed: 1937-10-08
Abstract: 507,237. Automatic control systems. ENGLISH ELECTRIC CO., Ltd., MARDIS, P. L., and CORNER, H. S. POUND. Oct. 8, 1937, No. 27358. [Class 38 (iv)] Speed.-A predetermined speed is maintained in an electric generating set by controlling the field excitation by means of a vibratory regulator 1 connected by a spring 3 to the speed responsive element 4 of a speed governor, one or more faces, including a pulsating force for producing vibration, being so applied to the vibrating element that all are in equilibrium over a certain working range only when the engine speed is at the predetermined value. As shown the mean force applied by the coil 9 which causes vibration is offset by a force applied by a coil 10 excited substantially in accordance with the generator excitation, being connected across the generator armature. Alternatively it may be connected in series relative with the generator field winding. A resistance regulator 14 may bo set to values appropriate to different engine speeds. Specification 463,207 is referred to.
Patent GB-1182424-A (GB)
Title: Improvements in and relating to Electropaints
Inventor: BRUCE DAVID BRECKINRIDGE
IPC: C09D5/44
Filed: 1966-06-20
Abstract: 1,182,424. Electropaints. COURTAULDS Ltd. 19 June, 1967 [20 June, 1966], No. 27361/66. Heading C3B. [Also in Division C7] An electropaint contains a pigment and a binder which contains, in addition to a plurality of. carboxylate salt groups, one or more covalently bound functional groups which generate ions in an aqueous medium having a pH of at most 4. At such low pH the carboxyl group becomes substantially unionized. These additional groups, e.g. sulphonic acid or amine, especially tertiary amine groups maintain the wetting property of the binder for the pigment and merely act as an auxiliary source of ionization. Sulphonic acid groups may be introduced by reacting hydroxyl groups in the polymer with a sultone. In an example an ester of a diglycidyl of bisphenol A with dehydrated castor oil fatty acids, rosin and dimerized linoleic-rich fatty acids (see Example 1 of Specification 1,080,172) was reacted with propane sultone to introduce sulphonate groups. The product neutralized with diethylamine, TiO 2  was added to form the electropaint. In a second example the same epoxy resin was esterified with an adduct of admerginate acid anhydride and dimethylaminoethanol. In this case tertiary amine groups were introduced into the binder molecule.
Patent GB-650238-A (GB)
Title: Improvements in or relating to electrical switching means adapted to be operated by fluid-pressure impulses
IPC: H01H3/24
Filed: 1948-10-21
Abstract: 650,238. Fluid actuation of switches. SIEMENS & GENERAL ELECTRIC RAILWAY SIGNAL CO., Ltd., and RIDDLE, H. J. N. Oct. 21, 1948, No. 27411. [Class 38(v)] [Also in Group XXXVIII] A pressure-operated switch for use in road-traffic signal systems (see Group XXXVIII), comprises normally-closed contacts 10, 20, Fig. 4, which are adapted to be opened by fluid-pressure impulses by a diaphragm 19 carrying the contact 20. The part of the casing below a second diaphragm 16 is connected to a tube in the detector pad, e.g. that of Specification 647,268, [Group XXXVIII], so that impulses applied to the diaphragm 16 cause air flow through holes 11 in a rigid member 9 so as to lift the diaphragm 19 which is returned as soon as the impulse ceases by a flexible conductor strip 21. A second switch, having normally-open contacts 29, 30, Fig. 6, is also provided so that the signals will only be operated by traffic moving in a certain direction. To this end, the second switch has a one-way valve member 35 covering the holes 11 and the diaphragm 19 has a small air-hole (not shown) so that the reopening of contacts 29, 30 is delayed. The switches control a relay operating the signals. If a vehicle stops on the detector pad, the air pressure in the system is slowly equalized by a filter pad (not shown).